Usage: 3 forms in 3 verses
Form Translated As     In Verse(s)
επιλήπτων of ones overcome by convulsions LXX.1Sam.21.15
επίληπτοσ overcome by convulsions LXX.2Kgs.9.11
επίληπτον overcome by convulsions LXX.1Sam.21.14

Liddell-Scott-Jones

ἐπίληπτος (epilēptos) convulsed G:A

ἐπίληπτος-ος,

Ionic dialect ἐπίλαμπτος, ον, caught or detected in anything, . ᾑρέθη 5th c.BC: Sophocles Tragicus “Antigone” 406: c.participle, ἐπίλαμπτος ἀφάσσουσα caught in the act of feeling, [Refs 5th c.BC+]

__2. culpable, censurable, πάθος [Refs 1st c.AD+]; of errors in metre, [Refs]
__3. disabled, ἀνδράποδον [Refs 4th c.BC+]; of a hen-partridge, [Refs]
__II. suffering from epilepsy, [Refs 5th c.BC+]; so . ὑπὸ πάθους 1st-2nd c.AD: Plutarchus Biographus et Philosophus 2.798f.